EP0023311A1 - Medical irradiation device - Google Patents

Medical irradiation device Download PDF

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Publication number
EP0023311A1
EP0023311A1 EP80104127A EP80104127A EP0023311A1 EP 0023311 A1 EP0023311 A1 EP 0023311A1 EP 80104127 A EP80104127 A EP 80104127A EP 80104127 A EP80104127 A EP 80104127A EP 0023311 A1 EP0023311 A1 EP 0023311A1
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Prior art keywords
radiation
irradiation device
range
maximum
emission spectrum
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EP80104127A
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German (de)
French (fr)
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EP0023311B2 (en
EP0023311B1 (en
Inventor
Friedrich Wolff
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FRIEDRICH WOLFF TE RIEHEN ZWITSERLAND
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Wolff Friedrich
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0613—Apparatus adapted for a specific treatment
    • A61N5/0616—Skin treatment other than tanning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N2005/0635—Radiation therapy using light characterised by the body area to be irradiated
    • A61N2005/0636—Irradiating the whole body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • A61N5/0613—Apparatus adapted for a specific treatment
    • A61N5/0614—Tanning

Definitions

  • the invention relates to a medical radiation device with a radiation source whose emission spectrum (energy distribution over wavelength) has a maximum in the UVA range.
  • a radiation device for the treatment of psoriasis (psoriasis) is known, with the help of which the pathogens of this disease located at the bottom of the germ layer of the skin are said to be killed by UVA radiation.
  • the maximum of the emission spectrum for older devices was 365 nm and for newer versions 360 nm. Since the skin has to be sensitized by medication, namely the administration of melamine, efforts have recently been made to reduce the radiation to the range of shifting higher energy shorter waves.
  • UVA radiation devices for tanning purposes. Radiation below 350 nm is required for pigment darkening and radiation below 340 nm for pigment formation.
  • IR radiation devices that emit IR radiation, mainly in short wavy IR range.
  • Such devices equipped with incandescent bodies are intended to stimulate the blood circulation and thereby accelerate the healing, for example of inflammation.
  • a UV radiation source e.g. a high pressure mercury lamp and an IR radiation source, e.g. to arrange a quartz rod.
  • the invention is based on the object of specifying a medical radiation device for the treatment of pathologically altered cell tissue.
  • the maximum is between 367 and 385 nm, preferably between 370 and 380 nm and in particular between 370 and 372 nm.
  • the emission spectrum drops so strongly towards the short-wave range that the relative energy at 350 nm is less than 20% of the maximum. This concentrates the UVA radiation energy in the desired area.
  • pigment formation, pigment darkening and erythema formation are all the more reduced the smaller the radiation fraction is below 350 nm. In this way, the radiation permeability of the skin is not impaired and the application time is not limited.
  • a filter which essentially filters out radiation below 340 nm and preferably below 350 nm.
  • the 50% bandwidth of the emission spectrum should not be greater than 30 nm, preferably only about 20 nm.
  • the radiation source also emits IR radiation in the range between 6000 and 9000 nm.
  • An additional radiation source can also be provided for the emission of this IR radiation.
  • This long-wave IR radiation corresponds to a very mild temperature, around the body temperature.
  • the combination of this IR radiation with the claimed UVA radiation can make the treatment of the diseased cell tissue more successful. It also improves the depth effect of the radiation.
  • a mercury low-pressure fluorescent lamp is particularly inexpensive because it is possible to arrange the major part of the emitted UVA energy in the desired range by appropriate choice of the phosphor.
  • the phosphor can have strontium fluoroborate and europium.
  • Another advantage is that such a fluorescent lamp can be operated in such a way that the IR radiation emits in the range between 6000 and 9000 nm.
  • the radiation source is advantageously rod-shaped and surrounded by a trough-shaped reflector.
  • the reflector increases the radiation density in front of the device.
  • rod-shaped radiation sources are arranged closely adjacent to one another and at a short distance from the radiation exit opening of the device. This results in a device for the extensive irradiation of parts of the body.
  • Whole body radiation can also be performed using 5 to 20 rod-shaped radiation sources with a length of 1.50 or 1.80 m.
  • the radiation generators require only a mild heat or no heat at all, the patient can be brought very close to the UVA radiation source, where a correspondingly high radiation density is achieved. All the features that allow it are therefore favorable Place patients close to the radiation generators.
  • the radiation sources arranged in an approximately horizontal plane are covered at a short distance by an approximately horizontal bed plate which is at least transparent to UV radiation over 350 nm. This automatically results in a small distance between the patient and radiation sources.
  • the radiation sources which are arranged in an approximately horizontal plane, are accommodated in a housing with the radiation outlet opening directed downwards, the housing being movable up and down by means of a motor and associated control.
  • the patient can comfortably mount a radiation bed and then he or a third party can lower the housing to just above his body.
  • UV radiation is divided into UVC radiation up to 280 nm, UVB radiation between 280 and 315 nm and UVA radiation between 315 and 400 nm. This is followed by visible light up to about 750 nm. Then the IR range closes up to 10 000 nm.
  • the relative energy E rel is plotted over the wavelength ⁇ .
  • the maximum 2 of this energy peak 1 is in the range a, which ranges from 367 to 385 nm, but is preferably limited by 370 and 380 nm.
  • the maximum 2 is 271 nm.
  • the flank 3 of the tip 1 facing the short-wave part of the UVA radiation drops steeply, so that only a small amount of radiation energy is present below 350 nm.
  • a filter 4 can be used which essentially filters the radiation below this wavelength.
  • FIG. 3 An embodiment of an irradiation device according to the invention is illustrated in FIG. 3. It is a bed 10, in which a housing 11 rests on a base frame 12 and is covered at the top by a bed plate 13 which is at least transparent to the radiation of interest here.
  • Hg low-pressure fluorescent lamps 14 are each arranged in a channel-shaped reflector 15 in such a way that the radiation is emitted upwards.
  • the fluorescent tubes are so close together that their distance is smaller than their diameter. Their distance from the underside of the bed plate 13 is also smaller than their diameter.
  • the bed plate 13 can also serve as a filter, for example to filter radiation below 340 or 350 nm. During the treatment, the patient lies down on the bed 13 so that his entire body is hit by the radiation from the tip 1 and the area 8.
  • FIG. 4 shows an irradiation device 20, the housing 21 of which has an interior similar to that of the housing 10, but has a radiation outlet opening directed downwards.
  • the housing hangs on ropes 22 and 23 which are guided via deflection rollers 24, 25 and 26 to a winding device 27 which can be driven by a motor 28.
  • This has a remote control device 29.
  • the housing is arranged above a bed 30 and can be lowered by means of the motor 28 from the position shown in solid lines, in which a patient can climb onto the bed, by actuating the remote control device 29 into the position shown in dashed lines, in which the beam exit opening located just above the patient.
  • an irradiation device 40 which has a circular curved fluorescent tube 41 as a source emitting UVA radiation and in the middle an additional radiation source 42 which emits IR radiation in the boring area, for example a weakly heated metal plate.
  • an on and off switch 43, a timer 44 and indicator lamps 45 are attached to this device.
  • Such parts can also be accommodated in the devices 10 and 20.
  • FIG. 6 shows a mercury low-pressure fluorescent lamp 14 in cross section.
  • a glass jacket 16 which can simultaneously serve as a filter for radiation below 350 nm, has on the inside a phosphor layer 17 which has strontium fluoroborate and europium.
  • the interior 18 is filled with mercury vapor below the atmospheric pressure.
  • Electrodes 19 are located at the front ends. Such a lamp can emit a spectrum corresponding to FIG. 1. By choosing the ballasts it is in your hand to operate the lamp with such a power that the desired IR radiation is emitted as shown in FIG. 2.

Abstract

1. Medical radiation apparatus having a source of radiation the emission spectrum (energy distribution over wave-length) of which reaches a maximum in the UVA region (315-400 nm), characterised in that a source of radiation is used in which the emission spectrum maximum lies between 367 and 385 nm and the 50% bandwidth of the emission spectrum is less than 30 nm.

Description

Die Erfindung bezieht sich auf ein medizinisches Bestrahlungsgerät mit einer Strahlungsquelle, deren Emissionsspektrum (Energieverteilung über Wellenlänge) im UVA-Bereich ein Maximum hat.The invention relates to a medical radiation device with a radiation source whose emission spectrum (energy distribution over wavelength) has a maximum in the UVA range.

Es ist ein Bestrahlungsgerät zur Behandlung der Psoriasis (Schuppenflechte) bekannt, mit dessen Hilfe die an der unteren Gnnze der Keimschicht der Haut befindlichen Erreger dieser Krankheit durch UVA-Strahlung zum Absterben gebracht werden sollen. Hierbei lag das Maximum des Emissionsspektrums bei älteren Geräten bei 365 nm und bei neueren Ausführungen bei 360 nm. Da hierbei die Haut durch medikamentöse Behandlung nämlich die Verabreichung von Melamin, sensibilisiert werden muß, ist man in neuerer Zeit bestrebt, die Strahlung in den Bereich der energiereicheren kürzeren Wellen zu verschieben.A radiation device for the treatment of psoriasis (psoriasis) is known, with the help of which the pathogens of this disease located at the bottom of the germ layer of the skin are said to be killed by UVA radiation. Here, the maximum of the emission spectrum for older devices was 365 nm and for newer versions 360 nm. Since the skin has to be sensitized by medication, namely the administration of melamine, efforts have recently been made to reduce the radiation to the range of shifting higher energy shorter waves.

Es ist ferner bekannt, UVA-Bestrahlungsgeräte zu Bräunungszwecken einzusetzen. Hierbei ist für eine Pigmentdunkelung eine Strahlung unter 350 nm und für eine Pigmentbildung eine Strahlung unter 340 nm erforderlich.It is also known to use UVA radiation devices for tanning purposes. Radiation below 350 nm is required for pigment darkening and radiation below 340 nm for pigment formation.

Des weiteren sind medizinische Bestrahlungsgeräte bekannt, die IR-Strahlung abgeben, hauptsächlich im kurzwelligen IR-Bereich. Solche mit Glühkörpern (Glühlampen, Quarzstäben o. dgl.) ausgestatteten Geräte sollen die Blutzirkulation anregen und dadurch die Heilung, beispielsweise einer Entzündung, beschleunigen.Furthermore, medical radiation devices are known that emit IR radiation, mainly in short wavy IR range. Such devices equipped with incandescent bodies (incandescent lamps, quartz rods or the like) are intended to stimulate the blood circulation and thereby accelerate the healing, for example of inflammation.

Darüber hinaus ist es bekannt, in einem Bestrahlungsgerät eine UV-Strahlungsquelle, z.B. eine Quercksilber-Hochdrucklampe, und eine IR-Strahlungsquelle, z.B. einen Quarzstab, anzuordnen.Furthermore, it is known to use a UV radiation source, e.g. a high pressure mercury lamp and an IR radiation source, e.g. to arrange a quartz rod.

Der Erfindung liegt die Aufgabe zugrunde, ein medizinisches Bestrahlungsgerät zur Behandlung von krankhaft verändertem Zellgewebe anzugeben.The invention is based on the object of specifying a medical radiation device for the treatment of pathologically altered cell tissue.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß bei einem Bestrahlungsgerät der eingangs beschriebenen Art das Maximum zwischen 367 und 385 nm, vorzugsweise zwischen 370 und 380 nm und insbesondere zwischen 370 und 372 nm liegt.This object is achieved in that in a radiation device of the type described in the introduction the maximum is between 367 and 385 nm, preferably between 370 and 380 nm and in particular between 370 and 372 nm.

Ganz überraschend wurde festgestellt, daß eine Bestrahlung mit diesem Gerät zu einem sehr raschen Abheilen von entzündetem Zellgewebe führt und daß auch auf andere Weise, z.B. durch Mutation, Viren oder Karzinogene, krankhaft verändertes Zellgewebe regeneriert wird. Dieser Effekt tritt nicht nur bei Entzündungen o. dgl. an der Hauptoberfläche oder dicht darunter auf, sondern läßt sich mittels einer Oberflächenbestrahlung auch im Körperinneren erzielen. Dieser Erfolg wird mit einr UV-Strahlung erzielt, die im bisher unbeachteten, sehr langwelligen Teil des UVA-Bereichs liegt. Die Wellenlänge von etwa 380 nm scheint eine Anregungsfrequenz darzustellen, die bestimmte Selbstheilungskräfte in Gang setzt. Um hier eine ausreichende UV-Energie zur Verfügung zu stellen, sollte das Maximum in der Nähe dieser Wellenlänge liegen.Quite surprisingly, it was found that irradiation with this device leads to a very rapid healing of inflamed cell tissue and that pathologically altered cell tissue is also regenerated in another way, for example by mutation, viruses or carcinogens. This effect not only occurs in the case of inflammation or the like on the main surface or just below it, but can also be achieved inside the body by means of surface radiation. This success is achieved with UV radiation, which lies in the so far unnoticed, very long-wave part of the UVA range. The wavelength of approximately 380 nm appears to represent an excitation frequency that triggers certain self-healing powers. In order to provide sufficient UV energy here, the maximum should be close to this wavelength.

Da beim Durchtritt durch die Haut oder vorgehaltenes Zellgewebe Transmissionsverluste auftreten, die eine Verschiebung ins Langwelligere bewirken, werden Maxima unter 380 nm bevorzugt.Since transmission losses occur when passing through the skin or stored cell tissue, which cause a shift to the longer wavelength, maxima below 380 nm are preferred.

Günstig ist es, wenn das Emissionsspektrum zum kurzwelligen Bereich so stark abfällt, daß die relative Energie bei 350 nm weniger als 20 % des Maximums beträgt. Hierdurch wird die UVA-Strahlungsenergie auf den gewünschten Bereich konzentriert. Darüber hinaus wird Pigmentbildung, Pigmentdunkelung und Erythembildung um so mehr vermindert, je kleiner der Strahlungsanteil unter 350 nm ist. Auf diese Weise wird die Strahlungsdurchlässigkeit der Haut nicht beeinträchtigt und die Applikationszeit nicht begrenzt.It is favorable if the emission spectrum drops so strongly towards the short-wave range that the relative energy at 350 nm is less than 20% of the maximum. This concentrates the UVA radiation energy in the desired area. In addition, pigment formation, pigment darkening and erythema formation are all the more reduced the smaller the radiation fraction is below 350 nm. In this way, the radiation permeability of the skin is not impaired and the application time is not limited.

Diese Effekte können auch erreicht oder noch verbessert werden durch ein Filter, das Strahlung unter 340 nm und vorzugsweise unter 350 nm im wesentlichen abfiltert.These effects can also be achieved or improved by a filter which essentially filters out radiation below 340 nm and preferably below 350 nm.

Um einemöglichst gezielte, energiesparende Beeinflussung zu erreichen, sollte die 50 %-Bandbreite des Emissionsspektrums nicht größer als 30 nm sein, vorzugsweise nur etwa 20 nm betragen.In order to achieve a targeted, energy-saving influence, the 50% bandwidth of the emission spectrum should not be greater than 30 nm, preferably only about 20 nm.

Bei einem bevorzugten Ausführungsbeispiel ist dafür gesorgt, daß die Strahlungsquelle außerdem IR-Strahlung im Bereich zwischen 6000 und 9000 nm emittiert. Für die Abgabe dieser IR-Strahlung kann auch eine zusätzliche Strahlungsquelle vorgesehen sein. Diese langwellige IR-Strahlung entspricht einer sehr milden Temperatur, etwa im Bereich der Körpertemperatur. Überraschenderweise läßt sich durch die Kombination dieser IR-Strahlung mit der beanspruchten UVA-Strahlung die Behandlung des erkrankten Zellgewebes noch rascher zum Erfolg führen. Außerdem wird die Tiefenwirkung der Bestrahlung damit verbessert.In a preferred embodiment, it is ensured that the radiation source also emits IR radiation in the range between 6000 and 9000 nm. An additional radiation source can also be provided for the emission of this IR radiation. This long-wave IR radiation corresponds to a very mild temperature, around the body temperature. Surprisingly, the combination of this IR radiation with the claimed UVA radiation can make the treatment of the diseased cell tissue more successful. It also improves the depth effect of the radiation.

Zweckmäßigerweise liegt im Bereich zwischen 6000 und 9000 nm mindestens 50 % der gBamten IR-Strahlung vor. Die Energie soll daher auf die tatsächlich wirksamen Spektralbereiche konzentriert werden.Appropriately, in the range between 6000 and 9000 nm there is at least 50% of the g B official IR radiation. The energy should therefore be concentrated on the actually effective spectral ranges.

Es gibt zahlreiche Möglichkeiten, die UV-Strahlung im gewünschten Bereich zu erzeugen. Besonders günstig ist edoch eine Hg-Niederdruck-Leuchtstofflampe, weil es durch entsprechende Wahl des Leuchtstoffes gelingt, den größten Teil der abgestrahlten UVA-Energie im gewünschten Bereich anzuordnen. Beispielswäse kann der Leuchtstoff Strontiumfluroborat und Europium aufweisen. Ein weiterer Vorteil liegt darin, daß eine solche Leuchtstofflampe derart betrieben werden kann, daß die IR-Strahlung im Bereich zwischen 6000 und 9000 nm abgibt.There are numerous ways to generate UV radiation in the desired range. However, a mercury low-pressure fluorescent lamp is particularly inexpensive because it is possible to arrange the major part of the emitted UVA energy in the desired range by appropriate choice of the phosphor. For example, the phosphor can have strontium fluoroborate and europium. Another advantage is that such a fluorescent lamp can be operated in such a way that the IR radiation emits in the range between 6000 and 9000 nm.

Mit Vorteil ist die Strahlungsquelle stabförmig und von einem rinnenförmigen Reflektor umgeben. Der Reflektor erhöht die Strahlungsdichte vor dem Gerät.The radiation source is advantageously rod-shaped and surrounded by a trough-shaped reflector. The reflector increases the radiation density in front of the device.

Einen großen Vorteil bietet es, wenn mehrere stabförmige Strahlungsquellen dicht benachbart nebenehander und mit geringem Abstand von der Strahlenaustrittsöffnung des Geräts angeordnet sind. Dies ergibt ein Gerät für die flächige Bestrahlung von Körperpartien. Bei der Verwendung von 5 bis 20 stabförmigen Strahlungsquellen mit einer Länge von 1,50 oder 1,80 m lassen sich auch Ganzkörperbestrahlungen durchführen.It is a great advantage if several rod-shaped radiation sources are arranged closely adjacent to one another and at a short distance from the radiation exit opening of the device. This results in a device for the extensive irradiation of parts of the body. Whole body radiation can also be performed using 5 to 20 rod-shaped radiation sources with a length of 1.50 or 1.80 m.

Da von den Strahlungserzeugern nur eine milde Wärme oder gar keine Wärme verlangt wird, kann der Patient sehr dicht an die UVA-Strahlungsquelle herangeführt werden, wo sich eine entsprechend hohe Strahlungsdichte einstellt. Günstig sind daher auch sämtliche Merkmale, die es gestatten, den Patienten dicht vor den Strahlungserzeugern zu plazieren. Bei einer bevorzugten Ausführungsform ist dafür gesorgt, daß die in einer etwa horizontalen Ebene angeordneten Strahlungsquellen von einer etwa horizontalen, zumindest für UV-Strahlung über 350 nm durchlässigen Liegeplatte in geringem Abstand überdeckt sind. Hierbei ergibt sich automatisch ein geringer Abstand zwischen Patient und Strahlungsquellen.Since the radiation generators require only a mild heat or no heat at all, the patient can be brought very close to the UVA radiation source, where a correspondingly high radiation density is achieved. All the features that allow it are therefore favorable Place patients close to the radiation generators. In a preferred embodiment it is ensured that the radiation sources arranged in an approximately horizontal plane are covered at a short distance by an approximately horizontal bed plate which is at least transparent to UV radiation over 350 nm. This automatically results in a small distance between the patient and radiation sources.

Eine andere Möglichkeit besteht darin, daß die in einer etwa horizontalen Ebene angeordneten Strahlungsquellen in einem Gehäuse mit nach unten gerichteter Strahlenaustrittsöffnung untergebracht sind, wobei das Gehäuse mittels Motor und zugehöriger Steuerung auf und ab bewegbar ist. Der Patient kann eine Bestrahlungsliege bequem besteigen und dann kann er oder ein Dritter das Gehäuse bis dicht über seinen Körper absenken.Another possibility is that the radiation sources, which are arranged in an approximately horizontal plane, are accommodated in a housing with the radiation outlet opening directed downwards, the housing being movable up and down by means of a motor and associated control. The patient can comfortably mount a radiation bed and then he or a third party can lower the housing to just above his body.

Die Erfindung wird nachstehend anhand in der Zeichnung dargestellter, beovrzugter Ausführungsbeispiele näher erläutert. Es zeigen:

  • Fig. 1 das Emissionsspektrum im UV-Bereich einer erfindungsgemäß brauchbaren Strahlungsquelle,
  • Fig. 2 das Emissionsspektrum im IR-Bereich einer erfindungsgemäß brauchbaren Strahlungsquelle,
  • Fig. 3 einen schematischen Querschnitt durch ein Bestrahlungsgerät gemäß der Erfindung,
  • Fig. 4 eine schematische Seitenansicht einer anderen Ausführungsform eines Bestrahlungsgeräts,
  • Fig. 5 die Vorderansicht einer weiteren Ausführungsform anes Bestrahlungsgeräts und
  • Fig. 6 einen Querschnitt durch eine als Leuchtstofflampe ausgebildete Strahlungsquelle.
The invention is explained in more detail below with reference to preferred exemplary embodiments illustrated in the drawing. Show it:
  • 1 shows the emission spectrum in the UV range of a radiation source which can be used according to the invention,
  • 2 shows the emission spectrum in the IR range of a radiation source which can be used according to the invention,
  • 3 shows a schematic cross section through an irradiation device according to the invention,
  • 4 shows a schematic side view of another embodiment of an irradiation device,
  • 5 shows the front view of a further embodiment of an irradiation device and
  • Fig. 6 shows a cross section through a radiation source designed as a fluorescent lamp.

UV-Strahlung wird unterteilt in UVC-Strahlung bis 280 nm, UVB-Strahlung zwischen 280 und 315 nm und UVA-Strahlung zwischen 315 und 400 nm. Anschließend folgt das sichtbare Licht bis etwa 750 nm. Dann schließt sich der IR-Bereich bis 10 000 nm an.UV radiation is divided into UVC radiation up to 280 nm, UVB radiation between 280 and 315 nm and UVA radiation between 315 and 400 nm. This is followed by visible light up to about 750 nm. Then the IR range closes up to 10 000 nm.

In den Fig. 1 und 2 ist für ein bevorzugtes Ausführungsbeispiel angegeben, wie das Emissionspektrum bei einem erfindungsgemäßen Bestrahlungsgerät ausgebildet sein kann. Hierzu ist über der Wellenlänge λ die relative Energie Erel aufgetragen. Hierzeigt sich, daß eine ausgeprägte Energiespitze 1 im langwelligen Teil der UVA-Strahlung vorgesehen ist. Das Maximum 2 dieser Energiespitze 1 liegt im Bereich a, der von 367 bis 385 nm reicht, vorzugsweise aber durch 370 und 380 nm begrenzt ist. Hier liegt das Maximum 2 bei 271 nm. Die dem kurzwelligen Teil der UVA-Strahlung zugewandte Flanke 3 der Spitze 1 fällt steil ab, so daß unterhalb 350 nm nur noch eine geringe Strahlungsenergie vorhanden ist. Gegebenenfalls kann ein Filter 4 verwendet werden, das die Strahlung unterhalb dieser Wellenlänge im wesentlichen abfiltert. Pigmentfärbung, Pigmentbildung und Erythembildung werden daher weitgehend verhindert. Auch die Flanke 5 der Spitze 1 fällt verhältnismäßig steil ab, so daß oberhalb 400 nm nur noch geringe Energie abgestrahlt wird. Insgesamt ergibt sich daher eine Spitze 1, die eine 50 %-Bandbreite 6 von 19 nm hat. Nahezu die gesamte Abstrahlung im UVA-Bereich ist daher aufde Strahlung zwischen 360 und 390 nm konzentriert.1 and 2 show, for a preferred exemplary embodiment, how the emission spectrum can be designed in an irradiation device according to the invention. For this purpose, the relative energy E rel is plotted over the wavelength λ. This shows that a pronounced energy peak 1 is provided in the long-wave part of the UVA radiation. The maximum 2 of this energy peak 1 is in the range a, which ranges from 367 to 385 nm, but is preferably limited by 370 and 380 nm. Here the maximum 2 is 271 nm. The flank 3 of the tip 1 facing the short-wave part of the UVA radiation drops steeply, so that only a small amount of radiation energy is present below 350 nm. Optionally, a filter 4 can be used which essentially filters the radiation below this wavelength. Pigment staining, pigment formation and erythema formation are therefore largely prevented. The flank 5 of the tip 1 also drops relatively steeply, so that only little energy is emitted above 400 nm. Overall, this results in a peak 1, which has a 50% bandwidth 6 of 19 nm. Almost all of the radiation in the UVA range is therefore concentrated on the radiation between 360 and 390 nm.

Während die Strahlung im Bereich des sichtbaren.Lichts und im kurzwelligen Teil der IR-Strahlung vergleichsweise gering ist, ergibt sich im langwelligen Teil der IR-Strahlung eine weitere Erhebung 7 im Emissionsspektrum, wobei der Hauptteil im schraffierten Bereich 8, also zwischen 6000 und 9000 nm abgestrahlt wird.While the radiation in the range of the visible light and in the short-wave part of the IR radiation is comparatively low, there is a further elevation 7 in the emission spectrum in the long-wave part of the IR radiation, the main part being emitted in the shaded area 8, ie between 6000 and 9000 nm.

In Fig. 3 ist eine Ausführungsform eines erfindungsgemäßen Bestrahlungsgeräts veranschaulicht. Es handelt sich um eine Liege 10, bei der ein Gehäuse 11 auf einem Fußgestell 12 ruht und oben von einer Liegeplatte 13 überdeckt ist, die zumindest für die hier interessierende Strahlung durchlässig ist.An embodiment of an irradiation device according to the invention is illustrated in FIG. 3. It is a bed 10, in which a housing 11 rests on a base frame 12 and is covered at the top by a bed plate 13 which is at least transparent to the radiation of interest here.

Im Gehäuse sind Hg-Niederdruck-Leuchtstofflampen 14 je in einem rinnenförmigen Reflektor 15 derart angeordnet, daß die Strahlung nach oben abgegeben wird. Die Leuchtstoffröhren sind so dicht benachbart, daß ihr Abstand kleiner als ihr Durchmesser ist. Auch ihr Abstand zur Unterseite der Liegeplatte 13 ist kleiner als ihr Durchmesser. Die Liegeplatte 13 kann auch als Filter dienen, beispielsweise, um Strahlung unterhalb 340 oder 350 nm abzufiltern. Bei der Behandlung legt sich der Patient auf die Liegeplatte 13, so daß sein ganzer Körper von der Strahlung aus der Spitze 1 und dem Bereich 8 getroffen wird.Hg low-pressure fluorescent lamps 14 are each arranged in a channel-shaped reflector 15 in such a way that the radiation is emitted upwards. The fluorescent tubes are so close together that their distance is smaller than their diameter. Their distance from the underside of the bed plate 13 is also smaller than their diameter. The bed plate 13 can also serve as a filter, for example to filter radiation below 340 or 350 nm. During the treatment, the patient lies down on the bed 13 so that his entire body is hit by the radiation from the tip 1 and the area 8.

In Fig. 4 ist ein Bestrahlungsgerät 20 gezeigt, dessen Gehäuse 21 eine ähnliche Innenausstattung wie das Gehäuse 10 hat, aber eine nach unten gerichtete Strahlenaustrittsöffnung aufweist. Das Gehäuse hängt an Seilen 22 und 23, die über Umlenkrollen 24, 25 und 26 zu einer Wickelvorrichtung 27 geführt sind, welche von einem Motor 28 antreibbar ist. Dieser weist eine Fernsteuervorrichtung 29 auf. Das Gehäuse ist über einer Liege 30 angeordnet und kann mit Hilfe des Motors 28 aus der mit durchgehenden Linien gezeichneten Stellung, in der ein Patient die Liege besteigen kann, durch Betätigen der Fernsteuervorrichtung 29 in die gestrichelt gezeichnete Stellung abgesenkt werden, in der sich die Strahlenaustrittsöffnung dicht über dem Patienten befindet.FIG. 4 shows an irradiation device 20, the housing 21 of which has an interior similar to that of the housing 10, but has a radiation outlet opening directed downwards. The housing hangs on ropes 22 and 23 which are guided via deflection rollers 24, 25 and 26 to a winding device 27 which can be driven by a motor 28. This has a remote control device 29. The housing is arranged above a bed 30 and can be lowered by means of the motor 28 from the position shown in solid lines, in which a patient can climb onto the bed, by actuating the remote control device 29 into the position shown in dashed lines, in which the beam exit opening located just above the patient.

Bei der Ausführungsform nach Fig. 5 ist ein Bestrahlungsgerät 40 gezeigt, das eine kreisförmige gebogene Leuchtstoffröhre 41 als UVA-Strahlung abgebende Quelle und in der Mitte eine zusätzliche Strahlungsquelß 42 aufweist, die IR-Strahlung im langweIligen Bereich abgibt, beispielsweise eine schwach beheizte Metallplatte. Außerdem sind an diesem Gerät ein Ein- und Ausschalter 43, eine Zeitschaltuhr 44 und Anzeigelampen 45 angebracht. Derartige Teile können auch in den Geräten 10 und 20 untergebracht sein.In the embodiment according to FIG. 5, an irradiation device 40 is shown which has a circular curved fluorescent tube 41 as a source emitting UVA radiation and in the middle an additional radiation source 42 which emits IR radiation in the boring area, for example a weakly heated metal plate. In addition, an on and off switch 43, a timer 44 and indicator lamps 45 are attached to this device. Such parts can also be accommodated in the devices 10 and 20.

Fig. 6 zeigt eine Hg-Niederdruck-Leuchtstofflampe 14 im Querschnitt. Ein Glasmantel 16, der gleichzeitig als Filter für Strahlung unterhalb 350 nm dienen kann, trägt an der Innenseite eine Leuchtstoffschicht 17, welche Strontiumfluoroborat und Europium aufweist. Der Innenraum 18 ist mit Quecksilberdampf unterhalb des atmosphärischen Drucks gefüllt. An den stirnseitigen Enden befinden sich Elektroden 19. Eine solche Lampe vermag ein Spektrum entsprechend Fig. 1 abzugeben. Durch Wahl der Vorschaltgeräte hat man es in der Hand, die Lampe mit einer solchen Leistung zu betreiben, daß auch die gewünschte IR-Strahlung entsprechend Fig. 2 abgegeben wird.6 shows a mercury low-pressure fluorescent lamp 14 in cross section. A glass jacket 16, which can simultaneously serve as a filter for radiation below 350 nm, has on the inside a phosphor layer 17 which has strontium fluoroborate and europium. The interior 18 is filled with mercury vapor below the atmospheric pressure. Electrodes 19 are located at the front ends. Such a lamp can emit a spectrum corresponding to FIG. 1. By choosing the ballasts it is in your hand to operate the lamp with such a power that the desired IR radiation is emitted as shown in FIG. 2.

Claims (18)

1. Medizinisches Bestrahlungsgerät mit einer Strahlungsquelle, deren Emissionsspektrum (Energieverteilung über Wellenlänge) im UVA-Bereich ein Maximum hat, dadurch gekennzeichnet, daß das Maximum zwischen 367 und 385 nm liegt.1. Medical radiation device with a radiation source whose emission spectrum (energy distribution over wavelength) has a maximum in the UVA range, characterized in that the maximum is between 367 and 385 nm. 2. Bestrahlungsgerät nach Anspruch 1, dadurch gekennzeichnet, daß das Maximum zwischen 370 und 380 nm liegt.2. Irradiation device according to claim 1, characterized in that the maximum is between 370 and 380 nm. 3. Bestrahlungsgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Maximum zwischen 370 und 372 nm liegt.3. Irradiation device according to claim 1 or 2, characterized in that the maximum is between 370 and 372 nm. 4. Bestrahlungsgerät nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß das Emissionsspektrum zum kurzwelligen Bereich so stark abfällt, daß die relative Energie bei 350 nm weniger als 20 % des Maximums beträgt.4. Irradiation device according to claim 1 to 3, characterized in that the emission spectrum to the short-wave region drops so much that the relative energy at 350 nm is less than 20% of the maximum. 5. Bestrahlungsgerät nach einem der Ansprüche 1 bis 4, gekennzeichnet durch ein Filter (4, 13, 16),das Strahlung unter 340 nm im wesentlichen abfiltert.5. Irradiation device according to one of claims 1 to 4, characterized by a filter (4, 13, 16) which filters out radiation below 340 nm essentially. 6. Bestrahlungsgerät nach Anspruch 5, dadurch gekennzeichnet, daß das Filter (4, 13, 16) Strahlung unter 350 nm im wesentlichen abfiltert.6. Irradiation device according to claim 5, characterized in that the filter (4, 13, 16) filters radiation below 350 nm substantially. 7. Bestrahlungsgerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die 50 %-Bandbreite des Emissionsspektrums nicht größer als 30 nm ist.7. Irradiation device according to one of claims 1 to 5, characterized in that the 50% bandwidth of the emission spectrum is not greater than 30 nm. 8. Bestrahlungsgerät nach Anspruch 6, dadurch gekennzeichnet, daß die 50 %-Bandbreite des Emissionsspektrums etwa 20 nm beträgt.8. Irradiation device according to claim 6, characterized in that the 50% bandwidth of the emission spectrum is about 20 nm. 9. Bestrahlungsgerät nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Strahlungsquelle (14) außerdem IR-Strahlung im Bereich zwischen 6000 und 9000 nm emittiert.9. Irradiation device according to one of claims 1 to 8, characterized in that the radiation source (14) also emits IR radiation in the range between 6000 and 9000 nm. 10. Bestrahlungsgerät nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß eine zusätzliche Strahlungsquelle (42) vorgesehen ist, die IR-Strahlung im Bereich zwischen 6000 und 9000 nm emittiert.10. Irradiation device according to one of claims 1 to 8, characterized in that an additional radiation source (42) is provided which emits IR radiation in the range between 6000 and 9000 nm. 11. Bestrahlungsgerät nach Anspruch 9 oder 10, dadurch gekennzeichnet, daß im Bereich zwischen 6000 und 9000 nm. mindestens 30 % der gesamten IR-Strahlung vorliegt.11. Irradiation device according to claim 9 or 10, characterized in that at least 30% of the total IR radiation is present in the range between 6000 and 9000 nm. 12. Bestrahlungsgerät nach Anspruch 11, dadurch gekennzeichnet, daß im Bereich zwischen 6000 und 9000 nm mindestens 50 % der gesamten IR-Strahlung vorliegt.12. Irradiation device according to claim 11, characterized in that at least 50% of the total IR radiation is present in the range between 6000 and 9000 nm. 13. Bestrahlungsgerät nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß die Strahlungsquelle eine Hg-Niederdruck-Leuchtstofflampe (14, 41) umfaßt.13. Irradiation device according to one of claims 1 to 12, characterized in that the radiation source comprises an Hg low-pressure fluorescent lamp (14, 41). 14. Bestrahlungsgerät nach Anspruch 13, dadurch gekennzeichnet, daß der Leuchtstoff Strontiumfluoroborat und Europium aufweist.14. Irradiation device according to claim 13, characterized in that the phosphor comprises strontium fluoroborate and europium. 15. Bestrahlungsgerät nach einem der Ansprüche 1 bis 14, dadurch gekennzeichnet, daß die Strahlungsquelle (14) stabförmig und von einem rinnenförmigen Reflektor (15) umgeben ist.15. Irradiation device according to one of claims 1 to 14, characterized in that the radiation source (14) is rod-shaped and surrounded by a trough-shaped reflector (15). 16. Bestrahlungsgerät nach einem der Ansprüche 1 bis 15, dadurch gekennzeichnet, daß mehrere stabförmige Strahlungsquellen (14) dicht benachbart nebeneinander und mit geringem Abstand von der Strahlenaustrittsöffnung des Geräts (10, 20, 40) angeordnet sind.16. Irradiation device according to one of claims 1 to 15, characterized in that a plurality of rod-shaped radiation sources (14) are arranged closely adjacent to one another and at a short distance from the radiation exit opening of the device (10, 20, 40). 17. Bestrahlungsgerät nach einemder Ansprüche 1 bis 16, dadurch gekennzeichnet, daß die in einer etwa horizontalen Ebene angeordneten Strahlungsquellen (14) von einer etwa horizontalen, zumindest für UV-Strahlung über 350 nm durchlässigen Liegeplatte (13) in geringem Abstand überdeckt sind.17. Irradiation device according to one of claims 1 to 16, characterized in that the radiation sources (14) arranged in an approximately horizontal plane are covered at a short distance from an approximately horizontal bed plate (13) which is transparent at least for UV radiation over 350 nm. 18. Bestrahlungsgerät nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß die in einer etwa horizontalen Ebene angeordneten Strahlungsquellen in einem Gehäuse (21) mit nach unten gerichteter Strahlenaustrittsöffnung untergebracht sind, wobei das Gehäuse mittels Motor (28) und zugehöriger Steuerung (29) auf und ab bewegbar ist.18. Irradiation device according to one of claims 1 to 16, characterized in that the radiation sources arranged in an approximately horizontal plane are accommodated in a housing (21) with the radiation exit opening directed downwards, the housing using a motor (28) and associated control (29 ) can be moved up and down.
EP80104127A 1979-07-27 1980-07-16 Medical irradiation device Expired EP0023311B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80104127T ATE2393T1 (en) 1979-07-27 1980-07-16 MEDICAL RADIATION DEVICE.

Applications Claiming Priority (2)

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DE19792930458 DE2930458A1 (en) 1979-07-27 1979-07-27 MEDICAL RADIATION DEVICE
DE2930458 1979-07-27

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EP0023311A1 true EP0023311A1 (en) 1981-02-04
EP0023311B1 EP0023311B1 (en) 1983-02-09
EP0023311B2 EP0023311B2 (en) 1988-02-10

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EP (1) EP0023311B2 (en)
JP (1) JPS5672874A (en)
AT (1) ATE2393T1 (en)
AU (1) AU6034680A (en)
DE (1) DE2930458A1 (en)
DK (1) DK152610C (en)
FI (1) FI64054C (en)
IE (1) IE49495B1 (en)
NO (1) NO802193L (en)

Cited By (5)

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US4686986A (en) * 1981-09-02 1987-08-18 Marta Fenyo Method and apparatus for promoting healing
EP0275817A1 (en) * 1987-01-23 1988-07-27 Friedrich Wolff Electrical-light bath
WO1990011105A1 (en) * 1989-03-21 1990-10-04 Mutzhas Maximilian F Medicinal u/v irradiation device
DE4026022A1 (en) * 1990-08-17 1992-02-20 Mutzhas Maximilian F UV irradiating appts. for photo-therapy of neuro-dermatitis - has spectral characteristic such that portion between 250 and 350 nm is below 1 per cent of that between 250 and 400
WO1994009850A1 (en) * 1992-10-23 1994-05-11 Cancer Research Campaign Technology Limited Light source

Families Citing this family (5)

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DE3225544A1 (en) * 1982-07-08 1984-01-12 Friedrich 7800 Freiburg Wolff Reflector arrangement for rod-shaped radiation generators
DE3444793A1 (en) * 1984-12-08 1986-06-12 Evb Entwicklungs Und Vertriebs BROWNING DEVICE
DE3603156A1 (en) * 1986-02-03 1987-08-06 Zeiss Carl Fa DEVICE FOR THERAPEUTIC RADIATION OF ORGANIC TISSUE WITH LASER RADIATION
DE3737605A1 (en) * 1987-11-05 1989-05-18 Mutzhas Maximilian F Ultraviolet fluorescent lamp without any UV-B radiation
JP7336757B2 (en) * 2018-09-28 2023-09-01 公立大学法人名古屋市立大学 Filter for phototherapy equipment

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US3986513A (en) * 1976-01-29 1976-10-19 Joseph Lester Stuhl Apparatus for irradiating the skin
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US2198770A (en) * 1937-07-02 1940-04-30 Battle Creek Equipment Company Therapeutic lamp
US3658068A (en) * 1969-12-17 1972-04-25 Westinghouse Electric Corp Method of treating hyperbilirubinemia
DE2438164A1 (en) * 1974-08-08 1976-02-19 Mueller Quarzlampenfab Dr F Cosmetic or medicinal irradiation device - has internally mounted reflector, super actinic, mercury, and infrared lamps
DE2559610A1 (en) * 1975-08-26 1977-04-28 Friedrich Wolff Tubular radiation source reflector - is of trench section with narrow gaps between panels and source
GB1468556A (en) * 1975-10-30 1977-03-30 Thorn Electrical Ind Ltd Ultra-violet lamps
US3986513A (en) * 1976-01-29 1976-10-19 Joseph Lester Stuhl Apparatus for irradiating the skin
DE2705264A1 (en) * 1977-02-09 1978-08-10 Uwe Unterwasser Electric Gmbh Medical treatment lamp suspension - has supporting belts with counterbalancing springs on shaft and clutch or brake

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4686986A (en) * 1981-09-02 1987-08-18 Marta Fenyo Method and apparatus for promoting healing
EP0275817A1 (en) * 1987-01-23 1988-07-27 Friedrich Wolff Electrical-light bath
WO1990011105A1 (en) * 1989-03-21 1990-10-04 Mutzhas Maximilian F Medicinal u/v irradiation device
DE4026022A1 (en) * 1990-08-17 1992-02-20 Mutzhas Maximilian F UV irradiating appts. for photo-therapy of neuro-dermatitis - has spectral characteristic such that portion between 250 and 350 nm is below 1 per cent of that between 250 and 400
WO1994009850A1 (en) * 1992-10-23 1994-05-11 Cancer Research Campaign Technology Limited Light source
US5843143A (en) * 1992-10-23 1998-12-01 Cancer Research Campaign Technology Ltd. Light source
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US6461866B1 (en) 1992-10-23 2002-10-08 Photo Therapeutics Limited In vitro photodynamic therapy using non laser light
EP1340520A1 (en) * 1992-10-23 2003-09-03 Photo Therapeutics Limited Cosmetic treatment of dermatological conditions

Also Published As

Publication number Publication date
EP0023311B2 (en) 1988-02-10
DE2930458A1 (en) 1981-02-12
FI802322A (en) 1981-01-28
FI64054B (en) 1983-06-30
NO802193L (en) 1981-01-28
FI64054C (en) 1983-10-10
JPS5672874A (en) 1981-06-17
AU6034680A (en) 1981-04-02
IE49495B1 (en) 1985-10-16
IE801425L (en) 1981-01-27
DK321480A (en) 1981-01-28
DK152610B (en) 1988-03-28
DK152610C (en) 1988-08-15
EP0023311B1 (en) 1983-02-09
ATE2393T1 (en) 1983-03-15

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